category -
The configuration category where the option
should be recognized. Valid values are general, group
and runtime. Modifying the latter is not so useful though.
(type=str)

name -
The name of the option (like 'cia_project_path')
(type=str)

spec -
The member specification. Generally this is a tuple,
with two items: ('descriptor',{specdict}). If specdict
is empty, the descriptor string is sufficient. If no
specific descriptor is needed, None may be used.
(type=tuple or str)

aliases -
Alias names for this member (('alias',...))
(type=sequence)

compare -
Does the option needs to be included in the
comparison of different group sections (while compressing
notification groups) (In other words -- does it affect the
mail/news subject or body in any way)? Setting to False
is only valid if category is group.
(type=bool)